Access chinesessg.com. 深安阳光-专业一键式紧急报警、校园一键式报警系统，一键式报警柱，老人一键紧急呼叫系统、消防火灾报警器、无线家用防盗报警器、4G防盗报警器、烟雾报警器、视频监控联网报警系统解决方案提供商

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

14/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value13.0 s

2/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.212

59/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

chinesessg.com

762 ms

www.chinesessg.com

1965 ms

bootstrap.min.css

1909 ms

style.css

1276 ms

jquery-2.1.0.js

2358 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that all of those requests were addressed to Chinesessg.com and no external sources were called. The less responsive or slowest element that took the longest time to load (7.2 sec) belongs to the original domain Chinesessg.com.

Content Size

3.5 MB

After Optimization

3.0 MB

In fact, the total size of Chinesessg.com main page is 3.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 33.2 kB

Original 42.1 kB
After minification 33.8 kB
After compression 9.0 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 8.3 kB, which is 20% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 33.2 kB or 79% of the original size.

Image Optimization

-3%

Potential reduce by 87.6 kB

Original 3.0 MB
After minification 2.9 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Chinesessg images are well optimized though.

JavaScript Optimization

-82%

Potential reduce by 246.6 kB

Original 299.1 kB
After minification 184.0 kB
After compression 52.5 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 246.6 kB or 82% of the original size.

CSS Optimization

-83%

Potential reduce by 113.1 kB

Original 136.4 kB
After minification 132.5 kB
After compression 23.3 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Chinesessg.com needs all CSS files to be minified and compressed as it can save up to 113.1 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chinesessg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chinesessg.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Chinesessg.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

chinesessg.com

Open Graph description is not detected on the main page of Chinesessg. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

Report Summary

Performance

Accessibility

Best Practices

SEO

深安阳光-专业一键式紧急报警、校园一键式报警系统，一键式报警柱，老人一键紧急呼叫系统、消防火灾报警器、无线家用防盗报警器、4G防盗报警器、烟雾报警器、视频监控联网报警系统解决方案提供商

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

chinesessg.com

www.chinesessg.com

bootstrap.min.css

style.css

jquery-2.1.0.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

chinesessg.com

www.chinesessg.com

bootstrap.min.css

style.css

jquery-2.1.0.js

bootstrap.min.js

banner.js

jquery.SuperSlide.2.1.1.js

swfobject.js

common.js

logo.png

Search_ICO.png

yijianbaojing.png

product1.png

product2.png

product3.png

product4.png

product5.png

yun_nav.jpg

fangan_nav.jpg

news_nav.jpg

fuwu_nav.jpg

banner4.jpg

banner1.jpg

banner2.jpg

banner3.jpg

banner5.jpg

tabs_index_li_hover01.png

shihulianfang_1.jpg

yijianbaojing_1.jpg

rqxl.jpg

item_mid_1.jpg

payy.png

item_mid_9.jpg

item_mid_3.jpg

item_mid_4.jpg

xiao.jpg

2017112310275258215.png

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guanzhu_weibo.jpg

guanzhu_anfangzishi.jpg

guanzhu_cps.jpg

guanzhu_zhonganwang.jpg